472825809 has 16 divisors (see below), whose sum is σ = 702263040. Its totient is φ = 314416080.

The previous prime is 472825799. The next prime is 472825813. The reversal of 472825809 is 908528274.

472825809 is a `hidden beast` number, since 47 + 28 + 2 + 580 + 9 = 666.

It is not a de Polignac number, because 472825809 - 2⁷ = 472825681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (472825909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11337 + ... + 32774.

It is an arithmetic number, because the mean of its divisors is an integer number (43891440).

Almost surely, 2^472825809 is an apocalyptic number.

It is an amenable number.

472825809 is a deficient number, since it is larger than the sum of its proper divisors (229437231).

472825809 is a wasteful number, since it uses less digits than its factorization.

472825809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44517 (or 44511 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 472825809 is about 21744.5581468100. The cubic root of 472825809 is about 779.0530965065.

It can be divided in two parts, 472 and 825809, that added together give a square (826281 = 909²).

The spelling of 472825809 in words is "four hundred seventy-two million, eight hundred twenty-five thousand, eight hundred nine".